I live in 中央区. I don't go to Shinjuku much. The Shinjuku station is just too complicated and I guess you know the place better than me =)

It's looks like 銀杏 and its seed is the 白果 we eat in HK. The trees can be found in many places across Japan and in autumn the leaves turn yellow and it makes a beautiful autumn foliage scene. By the way,